# All IAX2 Unreachable

**URL:** <https://community.asterisk.org/t/all-iax2-unreachable/84793>\
**Category:** Asterisk Support\
**Created:** [July 2, 2020, 9:12pm UTC](https://community.asterisk.org/t/all-iax2-unreachable/84793 "2020-07-02T21:12:55Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Bargog](https://avatars.discourse-cdn.com/v4/letter/b/258eb7/32.png) [@Bargog](https://community.asterisk.org/u/Bargog)\
**Post date:** [July 2, 2020, 9:12pm UTC](https://community.asterisk.org/t/all-iax2-unreachable/84793/1 "2020-07-02T21:12:55Z")

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Hello, first time asking help here.

After a provider issue and few reboot, all the IAX channels became unreachable.

Those same IAX channels are working on another server, which means the problem should be on this specific server.  
I haven’t changed any configuration file, and it has been working for years now.

I have tried rebooting, reload iax config, ping working.  
Any ideas what should I do to find the issue ? thanks

```auto
Tx-Frame Retry[001] -- OSeqno: 000 ISeqno: 000 Type: IAX Subclass: REGREQ
   Timestamp: 00003ms SCall: 02725 DCall: 00000 [*.*.*.*:4569]
   USERNAME : ************
   REFRESH : 60

Tx-Frame Retry[001] -- OSeqno: 000 ISeqno: 000 Type: IAX Subclass: REGREQ
   Timestamp: 00003ms SCall: 00553 DCall: 00000 [-.-.-.-:4569]
   USERNAME : ----------
   REFRESH : 60

Tx-Frame Retry[000] -- OSeqno: 000 ISeqno: 000 Type: IAX Subclass: POKE
   Timestamp: 00003ms SCall: 00072 DCall: 00000 [-.-.-.-:4569]

Tx-Frame Retry[000] -- OSeqno: 000 ISeqno: 000 Type: IAX Subclass: POKE
   Timestamp: 00003ms SCall: 03906 DCall: 00000 [*.*.*.*:4569]

```

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<div class="post-metadata">

**Author:** ![sedwards](https://avatars.discourse-cdn.com/v4/letter/s/838e76/32.png) [@sedwards](https://community.asterisk.org/u/sedwards)\
**Post date:** [July 11, 2020, 6:38pm UTC](https://community.asterisk.org/t/all-iax2-unreachable/84793/2 "2020-07-11T18:38:00Z")

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> [@Bargog](#):
>
> the problem should be on this specific server

Or on any piece of net gear between point A and B.

Can you run `'tcpdump'` on this host (‘A’) to confirm packets are being sent to the correct IP address?

Can you run `'tcpdump'` on the endpoint (‘B’) to confirm packets are being received?

Then step through each hop in between and see who is dropping your packets.

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<div class="post-metadata">

**Author:** ![system](https://global.discourse-cdn.com/asterisk/original/2X/4/475d0c889911cfb84ac4881ad6df8b523e3f9105.png) [@system](https://community.asterisk.org/u/system)\
**Post date:** [August 10, 2020, 6:38pm UTC](https://community.asterisk.org/t/all-iax2-unreachable/84793/3 "2020-08-10T18:38:03Z")

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